A treatise on the diseases of the ear including the anatomy and physiology of the organ together with the treatment of the affections of the nose and pharynx which conduce to aural disease . re seen to become smaller, and gradually to losetheir cilia. (See Fig. 8, page 29.) The connective tissue, whichforms the basis of the membrane, shows a reticular structure invarious parts, with meshes containing leucocytes. The periosteal 1-1 THE 01K4AX OF irEAlUXG. layer is made up of compact strands of connective tissue, running])arallel to the osseous surface. Some of tlie fibrous bundles areraised abo
A treatise on the diseases of the ear including the anatomy and physiology of the organ together with the treatment of the affections of the nose and pharynx which conduce to aural disease . re seen to become smaller, and gradually to losetheir cilia. (See Fig. 8, page 29.) The connective tissue, whichforms the basis of the membrane, shows a reticular structure invarious parts, with meshes containing leucocytes. The periosteal 1-1 THE 01K4AX OF irEAlUXG. layer is made up of compact strands of connective tissue, running])arallel to the osseous surface. Some of tlie fibrous bundles areraised above tlie general surface, and contain peculiar structures,formerly regarded as pathological products, but which Politzer hasshown to be normal formations. These are generally oval, butsometimes pj-riform bodies, liaving a fibrous structure, the fibresbeing arranged in laj^ers parallel with the exterior outline. Eachof these bodies is traversed from end to end by a fibrous stalkor band, attached at one extremity to the membranous surfacebelow, and at the other to the osseous wall. These structuresare purely connective-tissue formations, though they somewhatresemble the Pacinian Fig. 13. Section through the Mucous Membrane of the Inner Wall of the Tvmpanum of anAdult, x 350. (Scku-albe, after lirunner.) 1, ciliated epithelium ; 2, basal cells ; 3, connective tissue of the mucous membrane. Anatomists differ in opinion as to whether any glandularstructures are contained in the mucous membrane of the tym-panum. It was formerly held that these structures were absent,but Troltsch has described racemose glands near the anteriorpouch of the membrane, close to the entrance of the Eustachiantube. Other observers have noticed tubular glands lined withcylindrical epithelium and dilated at their extremities. Luschkaand Sappey, on the other hand, state that no glands exist in thenormal tympanum, and it may be regarded as certain that evenif the contrary opinion be correct, the glands
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Keywords: ., boo, bookcentury1800, bookdecade1890, booksubjectear, bookyear1894
